If your dog looks pleased to see you - it is probably because it loves the particular way you smell. The odour of a familiar human apparently lingers like perfume in the animal's brain - where it triggers an instinctive emotional response, research published yesterday reveals. Our scent acts on a part of the canine brain associated with reward and the strongest reactions are produced by humans that pets know best, say scientists in America. Gregory Berns, of Emory University in Atlanta, said: 'While we might expect that dogs should be highly tuned to the smell of other dogs, it seems that the "reward response" is reserved for their humans. 'When humans smell the perfume or cologne of someone they love, they may have an immediate, emotional reaction that's not necessarily cognitive. 'Our experiment may be showing the same process in dogs. But since dogs are so much more olfactory  than humans, their responses would likely be even more powerful than the ones we might have. 'It's one thing when you come home and your dog sees you and jumps on you and licks you and knows that good things are about to happen. 'In our experiment, however, the scent donors were not physically present. Why do animals avoid pylons? Because they emit terrifying flashes of light that are INVISIBLE to humans. Dolphins use sponges to protect their sensitive noses while foraging for food on the sea floor 'That means the canine brain responses were being triggered by something distant in space and time. It shows that dogs' brains have these mental representations of us that persist when we're not there.' The university's experiment - the first of its type - involved 12 dogs of various breeds who underwent brain scans while five different scents were placed in front of them. The scent samples came from the subject itself, a dog the subject had never met, a dog that lived in the subject's household, a human the dog had never met, and a human that lived in the subject's household. The familiar human scent samples were taken from someone else... According to the passage, a dog will be most interested in  _  . A) familiar dogs B) a human the dog had never met C) a dog the dog had never met D) familiar humans
D


AFRICAN MANGO FAQs Q : How do I use AFRICAN MANGO? A : It's simple... Just take one rapid - release capsule  , 3 times daily before meals (i.e., 30 minutes before breakfast, lunch, and dinner.) Q : Is it safe? A : Yes. Unlike other diet pills, Pure African Mango Extract (lrvingia gabonensis) does not contain any natural or artificial stimulants. Clinical studies have shown this nutrient to be both safe and well-tolerated. It's easy on your system and helps you lose body fat naturally. Q : Who uses AFRICAN MANGO? A : Everybody from A-List Hollywood movie stars to everyday men and women who want to lose pounds and inches of excess body fat. It's currently popular in Hollywood today because many of today's movie scripts call for actors and actresses to be in their absolute best shape. Q : Do I have to exercise and diet in order to see results? A : Research shows 100% Pure African Mango Extract helped people lose weight and belly fat without additional diet or exercise. However, in order to achieve your best weight-loss results, we highly recommend incorporating fun lifestyle exercises (like walking, tennis, etc.) and replacing high-calorie foods with healthy nutrient-dense foods like fruits, vegetables, and whole grains, and lean proteins. Also, drinking more water daily speeds weight loss, according to a new study from Viginia Tech University. Q : When I place my order, it's a one-time-only transaction  , right? A : Yes. Rest assured. When you shop with us, you can shop with confidence and peace of mind. Every order placed with us is 100% safe and secure. Our site is scanned and tested daily by McAfee SECURE. "The McAfee SECURE" trust mark (see the upper-left corner of our website) only appears when the website has passed their intensive, daily security scan. What's more, our customers never have to worry about being enrolled in auto-reship or auto-rebilling   scams  . Each and every order placed with us is a one-time-only transaction. CONSUMER TIP: Beware of sites that offer "free trials", which claim to... In what way will the medicine take effect to its fullest? A) Take pills regularly and you are sure to achieve your absolute best shape. B) Drinking more water daily will guarantee the pills to work efficiently. C) A healthy diet, adequate water and more exercise will contribute. D) High-calorie food and enough water are essential to make the pills work well.
C


*Question*
Just as some people think that certain numbers are lucky or unlucky, others believe that we can use numbers to understand our personalities, or predict what will happen to us in the future. Numerology is a way of using numbers to describe a person's character, and to make predictions about future life events. Numerologists use the numbers 1-9, 11 and 22 -- also known as the "master" numbers -- to help a person understand his or her personality, life goals, and destiny. Numerologists consider yourLife Path number to be the most significant because this number describes your character. To find this number, add together all the numbers in your date of birth. For example, a person born on April 25, 1985 would add the month (4), to the numbers of the date (2+5), plus the numbers of the birth year (1+9+8+5). In this case the total is 34, so this person's life path number is 7(3+4). Numerologists believe that people with this number are peaceful and affectionate but can also be very reserved. Your Expression numberdescribes your talents and predicts how you should use these to fulfill your destiny in life. Numerologists assign a number between 1 and 9 to each of the letters in your name. These numbers are then added together in the same way as before to find your Expression number. Numerologists can also do calculations to predict when the most challenging periods of your life will be. Numerologists also believe that the day a person is born is important. Each day of the month has a character description. People born on the fourth are said to be responsible, honest, and stubborn. People born on the fifteenth have very strong attachments to family and home. Those who celebrate their birthday on the thirtieth are artistic, creative, and imaginative, and often make good writers. If we calculate the numerical value of our name and birth date, numerologists believe that we can learn more about our personalities. They also believe that we can predict our destinies, how our lives will progress, and what challenges we may... According to the passage, numerologists believe that   _  . A) Life Path number can be used to predict a person's most challenging life periods B) Expression number is the most meaningful for people to learn a person's character C) numbers can help people better understand themselves D) numbers can be used to change a person's future
**Answer**

C